quick humminbird ?

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12-01-2009, 01:15 PM
J White

quick humminbird ?

Awhile back my US2 quit working... I swapped df's around, everything
works fine elsewhere, but neither my 787 or 797 will work off the US

Trying to troubleshoot thoroughly before tearing into the motor, I just
happened to check for continuity on my adapter cable - the 6 or so inch
long one that converts from round threaded coupler on one end to H'bird
plug on the other. My question is, I have 4 pins coming from the tm.
I have four sockets in the tm end of the adapter. The H'bird plug only has
three pins. I only have continuity from two of these pins through the
adapter cable. The third pin is "dead".

Is this my problem? Or are only two used?
I'd love to see sort of a pinout explanation of what each pin does,
200, 83 freq., water temp, etc.
12-01-2009, 03:16 PM
Wannabe...

Betting that's the converter cable is the problem J. I'll betcha Greg Walters can help you with that pin layout. I'd email/PM him if he doesn't happen to see this.

If you've got access to cable making supplies, you could prolly gen up a test cable to bypass the adapter if you're of a mind to trouble shoot it further.

Radio shack has the male/female pin ends for pretty dang cheap and with a litte tedious close up work, you can make a bypass cable pretty easily. I've done it before to test out a Garmin cable.

Wannabe...
12-01-2009, 04:52 PM
J White

Thanks WB. I ended up losing patience and cutting into the adapter to
see what gave - ended up the red wire was pulled loose from the terminal,
up inside the molded connecter. Bad solder connection, tm end. AHA!
Think I'm just gonna order a new cable. I did figure out the colors and
which pins they go to, if I can figure out how to post up my diagram I'll
do it.
12-01-2009, 05:27 PM
Wannabe...

Good deal J. I'm pretty impatient when it comes to this stuff too. I was actually on my way back here to let you know I've got some of the crimp terminals if you needed 'em. But it looks like you beat me to it.

Wannabe...
12-01-2009, 06:04 PM
J White

Welp, had a nasty argument with our scanner and it won -
but there is more than one way to skin a cat.

Ok, edit on the use of color investigation -
red and yellow show a slight resistance across them which changes when I played a lighter
across the temp sensor briefly. I could not remember whether the water temp quit when the
sonar did, so I plugged it back up and checked... no temp sensor recognized. Now why this
made the sonar quit working, I dunno. But I definitly had an open circuit on the red wire, so
I'm taking a gamble on a new cable. And yes, the nekkid wire has continuity with the metal parts
of the motor ;)

Anyhow,
http://i237.photobucket.com/albums/f...t/IM001699.jpg
12-01-2009, 07:16 PM
J White

OK, curiousity gots the better of me. I soldered the red wire back
to where it had pulled loose from and tried it out. Temp reading is
back, and it LOOKS like sonar is working. Reason I say this is, it
has always shown SOME kind of bottom signal off a concrete floor in
the past - and it does again now. When the wire was open circuit,
it would search to crazy depths looking for bottom and never find it,
whether on water or on the trailer. New cable time and cross fingers
thats all the problem.
12-01-2009, 07:34 PM
Cane Pole

Quote:

Originally Posted by J White

OK, curiousity gots the better of me. I soldered the red wire back
to where it had pulled loose from and tried it out. Temp reading is
back, and it LOOKS like sonar is working. Reason I say this is, it
has always shown SOME kind of bottom signal off a concrete floor in
the past - and it does again now. When the wire was open circuit,
it would search to crazy depths looking for bottom and never find it,
whether on water or on the trailer. New cable time and cross fingers
thats all the problem.

Now that its working. Leave the red wire and cut another wire and see what quit working. (assuming you gonna get another cable)

Gotta have a common return, ping, and temp with 3 wires. I am cornfused.

I can't stand to leave well enough alone.
12-01-2009, 07:40 PM
J White

Quote:

Originally Posted by Cane Pole

Now that its working. Leave the red wire and cut another wire and see what quit working. (assuming you gonna get another cable)

Gotta have a common return, ping, and temp with 3 wires. I am cornfused.

I can't stand to leave well enough alone.

Might do that tomorrow, momma said she's throwin my supper out if'n I
don't get home :) Ya'll be good.
12-02-2009, 10:04 AM
Cane Pole

Jeff

I took the liberty to redraw your picture. I will add pertinent data to this drawing as data concerning the adapter cable emerges.

Knowledge is power.;)

http://i188.photobucket.com/albums/z...ble640x480.jpg
12-02-2009, 12:15 PM
Humminbird_Greg

I had visited the CC site before you posted this yesterday J White. I could have supplied you information on the Humminbird connector and pins (see below) but not on the wire color or the MinnKota connector. This is not one of our parts so I don’t have access to a drawing for it. Next time you need something quick try direct e-mailing me for it. I usually can check my e-mail several times a day but normally only get to the CC board once a day or so.

This is the pinout for an XNT-9-20-T transducer which this cable should have to use the same connections but seems to use different wire colors (which will not affect anything).

http://i280.photobucket.com/albums/k...onnections.jpg
12-02-2009, 01:23 PM
J White

Thanks Greg and CP :)

Canepole, might oughta just call it a generic h'bird/US2 adapter...
while the 2D part of the 797 will work on this setup, it a couple pins
(and elements) short for the SI to work. my lil "in case of emergency" Piranha works w/ this adapter too ;)
12-02-2009, 01:50 PM
Cane Pole

Quote:

Originally Posted by J White

Thanks Greg and CP :)

Canepole, might oughta just call it a generic h'bird/US2 adapter...
while the 2D part of the 797 will work on this setup, it a couple pins
(and elements) short for the SI to work. my lil "in case of emergency" Piranha works w/ this adapter too ;)

Ok Jeff. Pretty much as I thought it worked and is wired. Except the sheild is still unclear per your measurements.

The 2oo/83 signals must be time slotted, thus using the same wire as we discussed previously.

Interesting stuff.

Thanks Mr Greg.
12-02-2009, 05:22 PM
J White

Hard to explain sometimes when I hardly know what I'm trying to
explain :)

The knurled couplers - one coming from the tm the metal collar itself
shows a circuit to the metal parts of the tm head.

The other knurled part, the end of the adapter cable, is soldered to the
nekkid wire in the adapter cable.

The nekkid wire runs the length of the adapter cable, then apparently
just dead ends up close to the plug on the other end???

It does not have a circuit with any of the three pins on that end, and there
are no metal parts on that end, all plastic.

So it looks to me they have a nekkid wire basically just running inside the
sheath from the tm foot all the way to the back of the df, but not hooked
to anything on that end. And that's my story and I'm sticking to it.
12-02-2009, 05:33 PM
Cane Pole

Yo bare wire don't make it to Gregs bare wire pin drawing then does it?
12-02-2009, 05:51 PM
Cane Pole

Quote:

Originally Posted by Humminbird_Greg

I had visited the CC site before you posted this yesterday J White. I could have supplied you information on the Humminbird connector and pins (see below) but not on the wire color or the MinnKota connector. This is not one of our parts so I don’t have access to a drawing for it. Next time you need something quick try direct e-mailing me for it. I usually can check my e-mail several times a day but normally only get to the CC board once a day or so.

This is the pinout for an XNT-9-20-T transducer which this cable should have to use the same connections but seems to use different wire colors (which will not affect anything).

http://i280.photobucket.com/albums/k...onnections.jpg

I fount me drawing. This matches billbob's X85 pinout color codes.

red/black/nakid
12-02-2009, 06:10 PM
J White

Quote:

Originally Posted by Cane Pole

Yo bare wire don't make it to Gregs bare wire pin drawing then does it?

Well I'll be... yep, it does! It AND the black wire in the adapter both go
to that pin :o making my head hurt - good thing I don't do this for a
living. Makes more sense now at least.
12-02-2009, 07:08 PM
Cane Pole

Quote:

Originally Posted by J White

Well I'll be... yep, it does! It AND the black wire in the adapter both go
to that pin :o making my head hurt - good thing I don't do this for a
living. Makes more sense now at least.

That what I needed to nose......Yep it duz.